Re: A modest proposal -- We need a patch penguin

[Tom Rini]

On Wed, Jan 30, 2002 at 08:11:34AM -0800, Larry McVoy wrote:
> On Wed, Jan 30, 2002 at 09:07:07AM -0700, Tom Rini wrote:
> > On Wed, Jan 30, 2002 at 08:03:08AM -0800, Larry McVoy wrote:
> > > On Wed, Jan 30, 2002 at 08:42:33AM -0700, Tom Rini wrote:
> > > > On Tue, Jan 29, 2002 at 11:48:05PM -0800, Linus Torvalds wrote:
> > > > It does in some ways anyhow.  Following things downstream is rather
> > > > painless, but one of the things we in the PPC tree hit alot is when we
> > > > have a new file in one of the sub trees and want to move it up to the
> > > > 'stable' tree
> > > 
> > > Summary: only an issue because Linus isn't using BK.
> > 
> > Then how do we do this in the bk trees period?  To give a concrete
> > example, I want to move arch/ppc/platforms/prpmc750_setup.c from
> > 2_4_devel into 2_4, without loosing history.  How?  And just this file
> > and not all of _devel.
> 
> That question doesn't parse.  There are multiple ways you can do it but 
> once you do patches will no longer import cleanly from Linus.  The whole
> point of the pristine tree is to give yourself a tree into which you can
> import Linus patches.  If you start putting extra stuff in there you will
> get patch rejects.

Er, not the pristine tree, the linuxppc_2_4 tree, sorry.  I'll try
again.  One of the problems we hit frequently is that we have to move
files from linuxppc_2_4_devel into linuxppc_2_4, once they prove stable.
But just creating a normal patch, or cp'ing the files means when we pull
linuxppc_2_4 back into linuxppc_2_4_devel we get a file conflict, and
have to move one of the files (the previously existing one) into the
deleted dir.  How do we cleanly move just a few files from a child tree
into the parent?  I think this is a lot like what would happen, if Linus
used BK and we wanted to send him support for some platforms, but not
all of the other changes we have.

-- 
Tom Rini (TR1265)
http://gate.crashing.org/~trini/